<template>
	<div>
		<!-- 面包屑导航区域 -->
		<el-breadcrumb separator-class="el-icon-arrow-right">
			<el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
			<el-breadcrumb-item>用户管理</el-breadcrumb-item>
			<el-breadcrumb-item>用户列表</el-breadcrumb-item>
		</el-breadcrumb>
		<!-- 卡片视图区域 -->
		<el-card>
			<!-- 搜索添加区域 -->
			<el-row :gutter="20">
				<el-col :span="8">
					<el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
						<el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
					</el-input>
				</el-col>
				<el-col :span="4">
					<el-button type="primary" @click="addDialogVisible=true">添加用户</el-button>
				</el-col>
			</el-row>
			<!--用户列表区域 -->
			<el-table :data="userlist" border stripe>

				<el-table-column type="index" label="#"></el-table-column>
				<el-table-column label="姓名" prop="username"></el-table-column>
				<el-table-column label="邮箱" prop="email"></el-table-column>
				<el-table-column label="电话" prop="mobile"></el-table-column>
				<el-table-column label="角色" prop="role_name"></el-table-column>
				<el-table-column label="状态">
					<template slot-scope="scope">
						<el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)">
						</el-switch>
					</template>
				</el-table-column>
				<el-table-column label="操作" width="180px">
					<template slot-scope="scope">
						<el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
						<el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)"></el-button>
						<el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
							<el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
						</el-tooltip>
					</template>
				</el-table-column>
			</el-table>
			<!-- 分页区域-->
			<el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange" :current-page="queryInfo.pagenum"
			 :page-sizes="[1, 2, 5, 10]" :page-size="queryInfo.pagesize" layout="total, sizes, prev, pager, next, jumper" :total="total">
			</el-pagination>
		</el-card>
		<!-- 添加用户的对话框 -->
		<el-dialog title="添加用户" :visible.sync="addDialogVisible" width="50%" @close="addDialogClosed">
			<!-- 内容主体区域-->
			<el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
				<el-form-item label="用户名" prop="username">
					<el-input v-model="addForm.username"></el-input>
				</el-form-item>
				<el-form-item label="密码" prop="password">
					<el-input v-model="addForm.password"></el-input>
				</el-form-item>
				<el-form-item label="邮箱" prop="email">
					<el-input v-model="addForm.email"></el-input>
				</el-form-item>
				<el-form-item label="手机" prop="mobile">
					<el-input v-model="addForm.mobile"></el-input>
				</el-form-item>
			</el-form>
			<!-- 底部区域-->
			<span slot="footer" class="dialog-footer">
				<el-button @click="addDialogVisible = false">取 消</el-button>
				<el-button type="primary" @click="addUser">确 定</el-button>
			</span>
		</el-dialog>
		<!-- 修改用户的对话框 -->
		<el-dialog
		  title="修改用户"
		  :visible.sync="editDialogVisible"
		  width="50%" @close="editDialogClosed">
		  	<!-- 内容主体区域-->
		  	<el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
		  		<el-form-item label="用户名">
		  			<el-input v-model="editForm.username" disabled></el-input>
		  		</el-form-item>
		  		<el-form-item label="邮箱" prop="email">
		  			<el-input v-model="editForm.email"></el-input>
		  		</el-form-item>
		  		<el-form-item label="手机" prop="mobile">
		  			<el-input v-model="editForm.mobile"></el-input>
		  		</el-form-item>
		  	</el-form>
		  <span slot="footer" class="dialog-footer">
		    <el-button @click="editDialogVisible = false">取 消</el-button>
		    <el-button type="primary" @click="editUserInfo">确 定</el-button>
		  </span>
		</el-dialog>
		<!-- 分配角色对话框 -->
		<el-dialog
		  title="分配角色"
		  :visible.sync="setRoleDialogVisible"
		  width="50%" @close="setRoleDialogClosed">
		  <div>
			  <p>当前的用户:{{userInfo.username}}</p>
			  <p>当前的角色:{{userInfo.role_name}}</p>
			  <p>分配新角色：
			  <el-select v-model="selectedRoleId" placeholder="请选择">
			      <el-option
			        v-for="item in rolesList"
			        :key="item.id"
			        :label="item.roleName"
			        :value="item.id">
			      </el-option>
			    </el-select></p>
		  </div>
		  <span slot="footer" class="dialog-footer">
		    <el-button @click="setRoleDialogVisible = false">取 消</el-button>
		    <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
		  </span>
		</el-dialog>
	</div>
</template>

<script>
	export default {

		data() {
			//验证邮箱的规则
			var checkEmail = (rule, value, cb) => {
				//验证邮箱的正则表达式
				const regEmail = /^[A-Za-z0-9\u4e00-\u9fa5]+@[a-zA-Z0-9_-]+(\.[a-zA-Z0-9_-]+)+$/
				if (regEmail.test(value)) {
					//合法的邮箱
					return cb()
				}
				cb(new Error('请输入合法的邮箱'))
			}
			//验证手机号的规则
			var checkMobile = (rule, value, cb) => {
				//验证手机号的正则表达式
				const regMobile = /^1[3456789]\d{9}$/
				if (regMobile.test(value)) {
					//合法的手机号
					return cb()
				}
				cb(new Error('请输入合法的手机号'))
			}
			return {
				//获取用户列表得参数对象
				queryInfo: {
					query: '',
					//当前的页数
					pagenum: 1,
					//当前每页显示多少条数据
					pagesize: 2
				},
				userlist: [],
				total: 0,
				//控制添加用户对话框的显示与隐藏
				addDialogVisible: false,
				//添加用户的表单数据
				addForm: {
					username: '',
					password: '',
					email: '',
					mobile: ''
				},
				//添加表单的验证规则对象
				addFormRules: {
					username: [{
							required: true,
							message: '请输入用户名',
							trigger: 'blur'
						},
						{
							min: 3,
							max: 10,
							message: '用户名的长度在3~10个字符之间',
							trigger: 'blur'
						}
					],
					password: [{
							required: true,
							message: '请输入密码',
							trigger: 'blur'
						},
						{
							min: 6,
							max: 12,
							message: '用户名的长度在6~12个字符之间',
							trigger: 'blur'
						}
					],
					email: [{
							required: true,
							message: '请输入邮箱',
							trigger: 'blur'
						},
						{
							validator: checkEmail,
							trigger: 'blur'
						}
					],
					mobile: [{
							required: true,
							message: '请输入手机',
							trigger: 'blur'
						},
						{
							validator: checkMobile,
							trigger: 'blur'
						}
					],
				},
				//控制修改用户对话框的显示与隐藏
				editDialogVisible:false,
				//查询到的用户信息对象
				editForm:{},
				//修改表单的验证规则对象
				    editFormRules:{
						email: [{
								required: true,
								message: '请输入邮箱',
								trigger: 'blur'
							},
							{
								validator: checkEmail,
								trigger: 'blur'
							}
							],
							mobile: [{
									required: true,
									message: '请输入手机号',
									trigger: 'blur'
								},
								{
									validator: checkMobile,
									trigger: 'blur'
								},
								]
					},
					//控制分配角色对话框的显示与隐藏
					setRoleDialogVisible:false,
					//需要被分配角色的用户信息
					userInfo:{},
					//所有角色的数据列表
					rolesList:[],
					//已选中的角色Id值
					selectedRoleId:''
			}
		},
		created() {
			this.getUserList()
		},
		methods: {
			async getUserList() {
				const {
					data: res
				} = await this.$http.get('users', {
					params: this.queryInfo
				})
				if (res.meta.status !== 200) {
					return this.$message.error('获取用户列表失败')
				}
				this.userlist = res.data.users
				this.total = res.data.total
				console.log(res)
			},
			//监听pagesize改变的事件
			handleSizeChange(newSize) {
				//console.log(newSize)
				this.queryInfo.pagesize = newSize
				this.getUserList()
			},
			//监听页码值改变的事件
			handleCurrentChange(newPage) {
				//console.log(newPage)
				this.queryInfo.pagenum = newPage
				this.getUserList()
			},
			//监听switch开关状态的改变
			async userStateChanged(userinfo) {
				console.log(userinfo)
				const {
					data: res
				} = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
				if (res.meta.status !== 200) {
					userinfo.mg_state = !userinfo.mg_state
					return this.$message.error('更新用户状态失败！')
				}
				this.$message.success('更新用户状态成功！')
			},
			//监听添加用户对话框的关闭事件
			addDialogClosed() {
				this.$refs.addFormRef.resetFields()
			},
			//点击按钮，添加新用户
			addUser() {
				this.$refs.addFormRef.validate(async valid => {
					if (!valid) return
					//可以发起添加用户的网络请求
					const {
						data: res
					} = await this.$http.post('users', this.addForm)
					if (res.meta.status !== 201) {
						this.$message.error('添加用户失败！')
					}
					this.$message.success('添加用户成功!')
					//隐藏添加用户的对话框
					this.addDialogVisible = false
					//重新获取用户列表数据
					this.getUserList()
				})
			},
			//展示编辑用户的对话框
			async showEditDialog(id){
				//console.log(id)
				 const {data:res} = await this.$http.get('users/'+id)
				 if(res.meta.status!==200){
					 return this.$message.error('查询用户信息失败')
				 }
				 this.editForm=res.data
				this.editDialogVisible=true
			},
			//监听修改用户对话框的关闭事件
			editDialogClosed(){
				this.$refs.editFormRef.resetFields()
			},
			editUserInfo(){
				this.$refs.editFormRef.validate (async valid=>{
					if(!valid)return
					//发起修改用户信息的数据请求
					const{data:res} = await this.$http.put('users/'+this.editForm.id,{
						email:this.editForm.email,
						mobile:this.editForm.mobile
					})
					if(res.meta.status!==200){
						return this.$message.error('更新用户信息失败！')
					}
					//关闭对话框
					this.editDialogVisible=false
					//刷新数据列表
					this.getUserList()
					//提示修改成功
					this.$message.success('更新用户信息成功！')
				})
			},
			//根据Id删除对应的用户信息
			async removeUserById( id){
				//弹框询问用户是否删除数据
				const confirmResult= await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
				          confirmButtonText: '确定',
				          cancelButtonText: '取消',
				          type: 'warning'
				        }).catch(err => err)
						
						//如果用户确认删除，则返回值为字符串 confirm
						//如果用户取消删除，则返回值为字符串 cancel
						if(confirmResult !== 'confirm'){
							return this.$message.info('已取消删除')
						}
						const {data:res} = await this.$http.delete('users/'+id)
						
						if(res.meta.status!==200){
							return this.$message.error('删除用户失败！')
						}
						this.$message.success('删除用户成功!')
						this.getUserList()
			},
			//展示分配角色的对话框
			async setRole(userInfo){
				this.userInfo=userInfo
				//在展示对话框之前，获取所有角色的列表
				const {data:res} =await this.$http.get('roles')
				if(res.meta.status!==200){
					return this.$message.error('获取角色列表失败!')
				}
				this.rolesList=res.data
				this.setRoleDialogVisible=true
			},
			//点击按钮，分配角色
			async saveRoleInfo(){
				if(!this.selectedRoleId){
					return this.$message.error('请选择要分配的角色!')
				}
				const{data:res} =await this.$http.put(`users/${this.userInfo.id}/role`,{
					rid:this.selectedRoleId
				})
				if(res.meta.status!==200){
					return this.$message.error('更新角色失败!')
				}
				this.$message.success('更新角色成功!')
				this.getUserList()
				this.setRoleDialogVisible=false
			},
			//监听分配角色对话框的关闭事件
			setRoleDialogClosed(){
				this.selectedRoleId=''
				this.userInfo={}
			}
		}
	}
</script>

<style Lang="less" scoped>
</style>
